As with all filtration equipment for koi ponds and watergardens, no
one size or specification fits all needs. Sanitizing koi ponds requires
larger UV units than other types of water treatment because of fish
population, available sunlight and other considerations. Matching
the flow rate of the circulation pump to the proper size UV system is
most important to achieve proper killing power of UV sterilization.

All three series of sterilizers utilize Delta’s High Output (HO) low
pressure lamp, capable of 30,000 μ/sec/cm2 output at lamp end-oflife
(EOL) if design flow rates are maintained. The long life lamp
lasts up to 13.000 hours – one year – of continuous use.

Select from the dropdown link at the top of this page for more
information about UV sterilizers offered by Fluidart.